Predictors of incomplete flexible sigmoidoscopy.
D000367:Age Factors; D000368:Aged; D003111:Colonic Polyps / Q000175:diagnosis*; D015179:Colorectal Neoplasms / Q000175:diagnosis*; D005194:Family Practice; D005260:Female; D006801:Humans; D007044:Hysterectomy; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D018579:Patient Selection; D011446:Prospective Studies; D012189:Retrospective Studies; D012307:Risk Factors; D012737:Sex Factors; D012812:Sigmoidoscopy / Q000379:methods / Q000592:standards; D015431:Weight Loss